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<div class="title">ide.c 文件参考</div>  </div>
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<div class="textblock"><code>#include &lt;<a class="el" href="assert_8h_source.html">assert.h</a>&gt;</code><br />
<code>#include &lt;<a class="el" href="defs_8h_source.html">defs.h</a>&gt;</code><br />
<code>#include &lt;<a class="el" href="fs_8h_source.html">fs.h</a>&gt;</code><br />
<code>#include &lt;<a class="el" href="ide_8h_source.html">ide.h</a>&gt;</code><br />
<code>#include &lt;<a class="el" href="stdio_8h_source.html">stdio.h</a>&gt;</code><br />
<code>#include &lt;<a class="el" href="string_8h_source.html">string.h</a>&gt;</code><br />
<code>#include &lt;<a class="el" href="trap_8h_source.html">trap.h</a>&gt;</code><br />
<code>#include &lt;<a class="el" href="riscv_8h_source.html">riscv.h</a>&gt;</code><br />
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ide.c 的引用(Include)关系图:</div>
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<div class="center"><img src="ide_8c__incl.gif" border="0" usemap="#akern_2driver_2ide_8c" alt=""/></div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
宏定义</h2></td></tr>
<tr class="memitem:a60f91979b38f40131bb560477e9cd800"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="ide_8c.html#a60f91979b38f40131bb560477e9cd800">MAX_IDE</a>&#160;&#160;&#160;2</td></tr>
<tr class="separator:a60f91979b38f40131bb560477e9cd800"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9803910e7678ace10532f8ebead52036"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="ide_8c.html#a9803910e7678ace10532f8ebead52036">MAX_DISK_NSECS</a>&#160;&#160;&#160;56</td></tr>
<tr class="separator:a9803910e7678ace10532f8ebead52036"><td class="memSeparator" colspan="2">&#160;</td></tr>
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函数</h2></td></tr>
<tr class="memitem:a5e8e1409e0675bdd93040403c52dd660"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="ide_8c.html#a5e8e1409e0675bdd93040403c52dd660">ide_init</a> (void)</td></tr>
<tr class="separator:a5e8e1409e0675bdd93040403c52dd660"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab8bb6373351f5c5882009f8d37ec7a91"><td class="memItemLeft" align="right" valign="top"><a class="el" href="defs_8h.html#a1062901a7428fdd9c7f180f5e01ea056">bool</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="ide_8c.html#ab8bb6373351f5c5882009f8d37ec7a91">ide_device_valid</a> (unsigned short ideno)</td></tr>
<tr class="separator:ab8bb6373351f5c5882009f8d37ec7a91"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae4d4db7f714f3df1d9d80d857f4fe85e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="defs_8h.html#afeaa5ef46acd844422607ca6602691ef">size_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="ide_8c.html#ae4d4db7f714f3df1d9d80d857f4fe85e">ide_device_size</a> (unsigned short ideno)</td></tr>
<tr class="separator:ae4d4db7f714f3df1d9d80d857f4fe85e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa3e3300bda460455ef67f4f0b7861e5f"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="ide_8c.html#aa3e3300bda460455ef67f4f0b7861e5f">ide_read_secs</a> (unsigned short ideno, <a class="el" href="defs_8h.html#a435d1572bf3f880d55459d9805097f62">uint32_t</a> secno, void *dst, <a class="el" href="defs_8h.html#afeaa5ef46acd844422607ca6602691ef">size_t</a> nsecs)</td></tr>
<tr class="separator:aa3e3300bda460455ef67f4f0b7861e5f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1d381d983b9bc07a2a4b636ed1997174"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="ide_8c.html#a1d381d983b9bc07a2a4b636ed1997174">ide_write_secs</a> (unsigned short ideno, <a class="el" href="defs_8h.html#a435d1572bf3f880d55459d9805097f62">uint32_t</a> secno, const void *src, <a class="el" href="defs_8h.html#afeaa5ef46acd844422607ca6602691ef">size_t</a> nsecs)</td></tr>
<tr class="separator:a1d381d983b9bc07a2a4b636ed1997174"><td class="memSeparator" colspan="2">&#160;</td></tr>
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变量</h2></td></tr>
<tr class="memitem:a700c3d57cc39c14341ae31a7428befde"><td class="memItemLeft" align="right" valign="top">static char&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="ide_8c.html#a700c3d57cc39c14341ae31a7428befde">ide</a> [<a class="el" href="ide_8c.html#a9803910e7678ace10532f8ebead52036">MAX_DISK_NSECS</a> *<a class="el" href="fs_8h.html#af69dd8b281718a66b3e7a65250d24419">SECTSIZE</a>]</td></tr>
<tr class="separator:a700c3d57cc39c14341ae31a7428befde"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<h2 class="groupheader">宏定义说明</h2>
<a id="a9803910e7678ace10532f8ebead52036"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9803910e7678ace10532f8ebead52036">&#9670;&nbsp;</a></span>MAX_DISK_NSECS</h2>

<div class="memitem">
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          <td class="memname">#define MAX_DISK_NSECS&#160;&#160;&#160;56</td>
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</div>
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<a id="a60f91979b38f40131bb560477e9cd800"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a60f91979b38f40131bb560477e9cd800">&#9670;&nbsp;</a></span>MAX_IDE</h2>

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          <td class="memname">#define MAX_IDE&#160;&#160;&#160;2</td>
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</div>
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<h2 class="groupheader">函数说明</h2>
<a id="ae4d4db7f714f3df1d9d80d857f4fe85e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae4d4db7f714f3df1d9d80d857f4fe85e">&#9670;&nbsp;</a></span>ide_device_size()</h2>

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          <td class="memname"><a class="el" href="defs_8h.html#afeaa5ef46acd844422607ca6602691ef">size_t</a> ide_device_size </td>
          <td>(</td>
          <td class="paramtype">unsigned short&#160;</td>
          <td class="paramname"><em>ideno</em></td><td>)</td>
          <td></td>
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<div class="dynheader">
这是这个函数的调用关系图:</div>
<div class="dyncontent">
<div class="center"><img src="ide_8c_ae4d4db7f714f3df1d9d80d857f4fe85e_icgraph.gif" border="0" usemap="#aide_8c_ae4d4db7f714f3df1d9d80d857f4fe85e_icgraph" alt=""/></div>
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<h2 class="memtitle"><span class="permalink"><a href="#ab8bb6373351f5c5882009f8d37ec7a91">&#9670;&nbsp;</a></span>ide_device_valid()</h2>

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          <td class="memname"><a class="el" href="defs_8h.html#a1062901a7428fdd9c7f180f5e01ea056">bool</a> ide_device_valid </td>
          <td>(</td>
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          <td class="paramname"><em>ideno</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<div class="dynheader">
这是这个函数的调用关系图:</div>
<div class="dyncontent">
<div class="center"><img src="ide_8c_ab8bb6373351f5c5882009f8d37ec7a91_icgraph.gif" border="0" usemap="#aide_8c_ab8bb6373351f5c5882009f8d37ec7a91_icgraph" alt=""/></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a5e8e1409e0675bdd93040403c52dd660">&#9670;&nbsp;</a></span>ide_init()</h2>

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          <td class="memname">void ide_init </td>
          <td>(</td>
          <td class="paramtype">void&#160;</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
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<a id="aa3e3300bda460455ef67f4f0b7861e5f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa3e3300bda460455ef67f4f0b7861e5f">&#9670;&nbsp;</a></span>ide_read_secs()</h2>

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          <td class="memname">int ide_read_secs </td>
          <td>(</td>
          <td class="paramtype">unsigned short&#160;</td>
          <td class="paramname"><em>ideno</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="defs_8h.html#a435d1572bf3f880d55459d9805097f62">uint32_t</a>&#160;</td>
          <td class="paramname"><em>secno</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>dst</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="defs_8h.html#afeaa5ef46acd844422607ca6602691ef">size_t</a>&#160;</td>
          <td class="paramname"><em>nsecs</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
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</div><div class="memdoc">
<p>ide_read_secs 函数用于从 IDE 硬盘中读取指定扇区的数据。 首先计算出目标扇区在 ide 数组中的偏移量 iobase 然后调用 memcpy 函数将 ide 数组中的数据复制到目标缓冲区 dst 中 </p>
<div class="dynheader">
函数调用图:</div>
<div class="dyncontent">
<div class="center"><img src="ide_8c_aa3e3300bda460455ef67f4f0b7861e5f_cgraph.gif" border="0" usemap="#aide_8c_aa3e3300bda460455ef67f4f0b7861e5f_cgraph" alt=""/></div>
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</map>
</div>
<div class="dynheader">
这是这个函数的调用关系图:</div>
<div class="dyncontent">
<div class="center"><img src="ide_8c_aa3e3300bda460455ef67f4f0b7861e5f_icgraph.gif" border="0" usemap="#aide_8c_aa3e3300bda460455ef67f4f0b7861e5f_icgraph" alt=""/></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a1d381d983b9bc07a2a4b636ed1997174">&#9670;&nbsp;</a></span>ide_write_secs()</h2>

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          <td class="memname">int ide_write_secs </td>
          <td>(</td>
          <td class="paramtype">unsigned short&#160;</td>
          <td class="paramname"><em>ideno</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="defs_8h.html#a435d1572bf3f880d55459d9805097f62">uint32_t</a>&#160;</td>
          <td class="paramname"><em>secno</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const void *&#160;</td>
          <td class="paramname"><em>src</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="defs_8h.html#afeaa5ef46acd844422607ca6602691ef">size_t</a>&#160;</td>
          <td class="paramname"><em>nsecs</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
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</div><div class="memdoc">
<p>ide_write_secs 函数用于向 IDE 硬盘中写入指定扇区的数据。 在函数中，首先计算出目标扇区在 ide 数组中的偏移量 iobase 然后调用 memcpy 函数将源缓冲区 src 中的数据复制到 ide 数组中 </p>
<div class="dynheader">
函数调用图:</div>
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<div class="center"><img src="ide_8c_a1d381d983b9bc07a2a4b636ed1997174_cgraph.gif" border="0" usemap="#aide_8c_a1d381d983b9bc07a2a4b636ed1997174_cgraph" alt=""/></div>
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这是这个函数的调用关系图:</div>
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<h2 class="groupheader">变量说明</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a700c3d57cc39c14341ae31a7428befde">&#9670;&nbsp;</a></span>ide</h2>

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